part = function() {
var barthel = document.getElementById("partner").getElementsByTagName("LI");
for (var i=0; i<barthel.length; i++) {  barthel[i].onmouseover=function() {
this.className+="part"; }
barthel[i].onmouseout=function() {
this.className=this.className.replace(new RegExp("part\\b"), ""); } } }
if (window.attachEvent) window.attachEvent("onload", part);